One will tell the story of Paul de Gelder, who survived a shark attack in Australia’s Sydney Harbor in 2009. The Australian Navy diver lost an arm and a leg in the harbor's first shark attack in 60 years.

"Well I could see my safety boat in the distance and I started to swim toward it," he told Inside Edition in 2015. "I look up and saw that my arm was missing. It was just gone."

In the show, Sharks Among Us, De Gelder meets 16-year-old Hunter Treshl, a high school junior from North Carolina. His arm was eaten by a shark when he was swimming during a vacation a year ago.